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    SHORT CIRCUIT REPAIRING METHOD FOR PLASMA DISPLAY BOARD, AND ITS DEVICE
    2.
    发明专利
    SHORT CIRCUIT REPAIRING METHOD FOR PLASMA DISPLAY BOARD, AND ITS DEVICE 失效

    公开(公告)号：JP2000123737A

    公开(公告)日：2000-04-28

    申请号：JP29810298

    申请日：1998-10-20

    Applicant: TORAY INDUSTRIES

    Inventor： KOJIMA HIDEKI ,  TSUDA TAKAHARU

    IPC: H01J9/50 ,  B23K26/16

    Abstract: PROBLEM TO BE SOLVED: To efficiently remove generated crushed pieces by sucking the vicinity of a short-circuited portion by a short circuit repairing method for cutting the short-circuited portion on a board with the energy via direct radiation of a laser beam. SOLUTION: Abnormal discharge on electrodes and luminance reduction and abnormal luminescence on barrier ribs occur due to a short circuit portion 1 generated on silver electrodes or glass barrier ribs as a defective portion and a protruded portion generated by foreign matters or a pattern form collapse on a stripe-like pattern of a board 2. When the short-circuited portion 1 is cut by radiation of a laser beam 4 from a laser gun 3 above, the vicinity is sucked by a suction device 5 installed above at a position other than this passing path preferably for 1 sec or longer. The power of the laser beam 4 is preferably changed according to the melting point of the constituting material of the short- circuited portion 1. Crushed pieces are not scattered from the short-circuited portion 1 radiated by the laser beam 4, the pollution to the surrounding is prevented, and the number of times of radiation of the laser beam 4 to newly generated defects is reduced.

    MANUFACTURE OF PLASMA DISPLAY AND SCREEN PRINTING MACHINE FOR PLASMA DISPLAY
    4.
    发明专利
    MANUFACTURE OF PLASMA DISPLAY AND SCREEN PRINTING MACHINE FOR PLASMA DISPLAY 失效

    公开(公告)号：JP2000103034A

    公开(公告)日：2000-04-11

    申请号：JP27733298

    申请日：1998-09-30

    Applicant: TORAY INDUSTRIES

    Inventor： IWAMOTO MASAAKI ,  KOJIMA HIDEKI

    IPC: H01J9/42 ,  B41F15/08 ,  B41F15/26 ,  B41F17/14 ,  H01J9/02 ,  H01J11/22 ,  H01J11/34 ,  H01J11/02

    Abstract: PROBLEM TO BE SOLVED: To enable the quality level of print by screen printing by measuring the thickness of a glass substrate for plasma display and adjusting an assistant runner to be set on a printing table to an appropriate elevation and further, performing the screen printing, when the glass substrate for plasma display is screen-printed. SOLUTION: When the screen printing of a glass substrate for plasma display (hereafter called 'substrate' 1 is performed, at least, the thickness of the substrate 1 is measured in order to upgrade the quality level of print without dispersion, and the height of an assistant runner 2 to be set on a printing table 3 is adjusted depending upon the measurement results. After that, a paste is applied to perform the screen printing process. In this case, the assistant runner 2 is ideally adjusted to be 0.01-0.02 mm, preferably 0.01-0.1 mm lower in elevation than the substrate 1. When the elevation of the assistant runner 2 is adjusted, a shim spacer is introduced into a space between the assistant runner and its base or the height of the base part on which the assistant runner is set, is changed vertically as the adjustment methods.

    DEFECT INSPECTING METHOD AND APPARATUS BY IMAGE PROCESSING
    5.
    发明专利
    DEFECT INSPECTING METHOD AND APPARATUS BY IMAGE PROCESSING 审中-公开

    公开(公告)号：JP2003270087A

    公开(公告)日：2003-09-25

    申请号：JP2002068048

    申请日：2002-03-13

    Applicant: TORAY INDUSTRIES

    Inventor： KOJIMA HIDEKI ,  IGUCHI YUICHIRO

    IPC: G01N21/958 ,  G01M11/00 ,  G06T1/00 ,  H01J9/42 ,  H01J11/12 ,  H01J11/22 ,  H01J11/24 ,  H01J11/26 ,  H01J11/34 ,  H01J11/02

    Abstract: PROBLEM TO BE SOLVED: To solve the problem that specific patterns such as each kind of reference mark and test patterns are present on an electrode that is formed on a front plate and a rear plate in addition to a pattern section required for driving a PDP, and this sort of specific pattern being present in an inspection region is detected as 'a defect' in defect inspections and tact in a later review process increases unwillingly, and at the same time, needs to be judged to be non-defective, and reviewing a minute, common defect that may or may not be detected as a defect regardless of 'defect' in terms of resolution when imaging by a CCD camera or a detection limit size by algorithm, and at the same time, reviewing those that are judged to be common defects each time cause the tact to increase. SOLUTION: After a failed portion was detected, a failure judgment step is provided before the review. Then, in the step, the combination between the central coordinates of the failed section and failed elements is compared with that between the central coordinates of the preset defective section and/or a non-defective section for excluding from review targets by a defect-inspecting method and a defect-inspecting apparatus. COPYRIGHT: (C)2003,JPO

    CONDUCTIVE POWDER, CONDUCTIVE PASTE, PLASMA DISPLAY AND SUBSTRATE THEREFOR
    6.
    发明专利
    CONDUCTIVE POWDER, CONDUCTIVE PASTE, PLASMA DISPLAY AND SUBSTRATE THEREFOR 失效

    公开(公告)号：JPH11339554A

    公开(公告)日：1999-12-10

    申请号：JP7004799

    申请日：1999-03-16

    Applicant: TORAY INDUSTRIES

    Inventor： KOJIMA HIDEKI ,  OKINO AKIKO ,  MASAKI YOSHIKI

    IPC: C09D5/24 ,  G03F7/004 ,  G03F7/027 ,  H01B1/00 ,  H01B1/22 ,  H01J9/02 ,  H01J9/227 ,  H01J11/22 ,  H01J11/34 ,  H05K1/09 ,  H01J11/02

    Abstract: PROBLEM TO BE SOLVED: To form a fine pattern for a circuit pattern to be formed or the electrode of a plasma display substrate, reduce the thickness, and reduce the resistance by setting the average particle size and tap density within specified ranges, respectively. SOLUTION: This conductive powder has an average particles size of 0.5-2 μm and a tap density of 2-7 g/cm . The specific surface area of the conductive powder is preferably set to 0.4-1.5 m /g. It further preferably contains 50 wt.% or more of at least one of Ag, Au, Pd, Ni and Pt. OF these metal powders, the one containing 70 wt.% or more of Ag is preferably used from the point of cost and burning property. A conductive paste containing such a conductive powder and an organic component as essential components preferably consists of a photosensitive conductive paste whose organic component preferably contains a photoreactive compound. As the photoreactive compound, an acrylate or methacrylate compound is preferably used.

    METHOD FOR INITIALIZING OPTICAL RECORDING MEDIUM AND INITIALIZATION ASSISTANCE LAYER
    7.
    发明专利
    METHOD FOR INITIALIZING OPTICAL RECORDING MEDIUM AND INITIALIZATION ASSISTANCE LAYER 失效

    公开(公告)号：JPH10320837A

    公开(公告)日：1998-12-04

    申请号：JP12871697

    申请日：1997-05-19

    Applicant: TORAY INDUSTRIES

    Inventor： KOJIMA HIDEKI ,  YAMAHO TOMOYA

    IPC: G11B7/00 ,  G11B7/0055 ,  G11B7/26 ,  G11B7/30

    Abstract: PROBLEM TO BE SOLVED: To enable even the initialization of an optical recording medium, the initialization of which is heretofore not possible with existing initialization devices on account of excessively high or low laser beam reflectivity by mounting an initialization assistance layer to the later beam incident side of the optical recording medium, thereby changing the laser beam reflectivity when the optical recording medium is initialized by irradiation with the laser beam. SOLUTION: The optical recording medium formed with a recording layer, dielectric layer and reflection layer by a high-frequency sputtering method on a polycarbonate substrate with spiral grooves of 0.6 mm in thickness and 12 cm in diameter. The polycarbonate resin substrate with the transparent spiral grooves of 0.2 to 0.8 mm in thickness (0.6 mm in this embodiment) and 12 cm diameter is mounted as the initialization assistance layer on the laser beam incident side of the initialized disk. As a result, the optical recording medium of 4 to 40% in reflectivity and 1.2 mm in total thickness is initialized by irradiating the recording medium with the semiconductor laser beam from the initialization assistance layer side by using the existing initialization device. As a result, the initialization with the existing initialization device is made possible.

    OPTICAL RECORDING MEDIUM
    8.
    发明专利
    OPTICAL RECORDING MEDIUM 失效

    公开(公告)号：JPH10247339A

    公开(公告)日：1998-09-14

    申请号：JP5043097

    申请日：1997-03-05

    Applicant: TORAY INDUSTRIES

    Inventor： YAMAHO TOMOYA ,  KOJIMA HIDEKI ,  OBAYASHI GENTARO

    IPC: G11B7/24

    Abstract: PROBLEM TO BE SOLVED: To secure a sufficient C/N and an overwrite erasability by making optical recording medium include an optical absorption quantity control element and a light quantity control element in an optical recording medium wherein recording and erasing of information is carried out according to phase transition between amorphous state and crystal state. SOLUTION: A proper optical absorption quantity state is achieved by using an optical absorption quantity control element satisfying Aa

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